/Engine/Plugins/Interchange/Runtime/Source/FactoryNodes/Public/InterchangeSkeletalMeshFactoryNode.h
Set the skeletal mesh threshold use to decide if two normal, tangents or bi-normals are equal.
[UFUNCTION](Programming/UnrealArchitecture/Reference/Functions)(BlueprintCallable, Category="Interchange | Node | SkeletalMesh") bool SetCustomThresholdTangentNormal ( const float & AttributeValue, bool bAddApplyDelegate )